NEW 198019
Web Inspector: Source maps: navigating to resource with missing source-mapped file should show available resource 
https://bugs.webkit.org/show_bug.cgi?id=198019
Summary Web Inspector: Source maps: navigating to resource with missing source-mapped...
Nikita Vasilyev
Reported 2019-05-18 16:21:57 PDT
Created attachment 370202 [details] [Video] Bug Steps: 1. Open https://github.com 2. Log in (you need to have an account) 3. Inspect <body> 4. Click on the first source link in the styles sidebar (layout.scss:2) Expected: layout.scss isn't present on the server, as GitHub doesn't deploy their Sass files (but for some doesn't remove sourceMappingURL declarations). I expect to navigate to the corresponding rule in CSS resource (as the Sass file is 404). Actual: "Not Found" in the content view. There's no way to navigate to the CSS rule from the styles sidebar.
Attachments
[Video] Bug (916.80 KB, video/quicktime)
2019-05-18 16:21 PDT, Nikita Vasilyev 		no flags
Details
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Radar WebKit Bug Importer
Comment 1 2019-05-18 16:22:10 PDT
<rdar://problem/50922713>
Sam Sneddon [:gsnedders]
Comment 2 2022-08-02 09:23:41 PDT
This also happens with JS. e.g., https://chat.mozilla.org/bundles/966137753e93f2670808/init.js has //# sourceMappingURL=init.js.map Trying to set a breakpoint in init.js causes it to appear as a breakpoint somewhere we don't have the files, as they have URLs like webpack:///./react-sdk/src/BasePlatform.ts. When the breakpoint gets hit, we then don't see anything meaningful, as the source view for the hit breakpoint just says "An error occurred trying to load the resource".
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